/* ===== CSS RESET ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ===== ROOT COLORS ===== */
:root {
  --bg-main: #0f172a;
  --card-bg: rgba(255, 255, 255, 0.15);
  --accent: #38bdf8;
  --accent-hover: #0ea5e9;
  --text-main: #e5e7eb;
  --text-muted: #94a3b8;
  --error: #f87171;
}

/* ===== BODY ===== */
body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1e293b, #020617);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
}

/* ===== FORM ===== */
.weatherForm {
  display: flex;
  gap: 12px;
  margin-bottom: 30px;
}

/* ===== INPUT ===== */
.cityInput {
  width: 280px;
  padding: 14px 18px;
  font-size: 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  outline: none;
  backdrop-filter: blur(10px);
  transition: border 0.3s, box-shadow 0.3s;
}

.cityInput::placeholder {
  color: var(--text-muted);
}

.cityInput:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.3);
}

/* ===== BUTTON ===== */
button[type="submit"] {
  padding: 14px 22px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), #22d3ee);
  color: #020617;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(56, 189, 248, 0.35);
}

button[type="submit"]:active {
  transform: translateY(0);
}

/* ===== CARD ===== */
.card {
  width: 340px;
  padding: 32px;
  border-radius: 20px;
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  text-align: center;
  animation: fadeIn 0.6s ease;
}

/* ===== TEXT ===== */
.cityDisplay {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.tempDisplay {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 10px;
}

.humidityDisplay,
.descDescription {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.descDescription {
  font-style: italic;
}

/* ===== EMOJI ===== */
.weatherEmoji {
  font-size: 4.5rem;
  margin-top: 14px;
}

/* ===== ERROR ===== */
.errorDisplay {
  display: none;
  margin-top: 10px;
  color: var(--error);
  font-weight: 600;
}

/* ===== ANIMATION ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 400px) {
  .weatherForm {
    flex-direction: column;
  }

  .cityInput {
    width: 100%;
  }

  .card {
    width: 90%;
  }
}